He studied of Isaak Brodsky, Alexander Lubimov, Genrikh Pavlovsky.
In 1936, Alexei Mozhaev entered at the painting department of the Leningrad Institute of Painting, Sculpture and Architecture. In 1946, after the Great Patriotic War Alexei Mozhaev graduated from Leningrad Institute of Painting, Sculpture and Architecture named after Ilya Repin in Boris Ioganson warkshop. His graduation work was genre painting named "In Native Family", devoted to the postwar revival of the country.
Since 1936 Alexei Mozhaev has participated in Art Exhibitions.
He painted portraits, genre and historical compositions, landscapes, worked in oil painting, pencil drawings, and watercolors. In 1946 he was admitted to the Leningrad Union of Artists.
His solo exhibitions were in Leningrad (1982, 1989), Saint St. Petersburg (2008), and city of Pushkin (2010). Alexei Mozhaev the most known for his portrait paintings.
Painting by Alexei Mozhaev is based upon the loud light and shadow contrasts, exquisite plain-air transfer and tonal relationships.
In further his painting style become more decorative and general. Over the 30 years Mozhaev combined his creative activities with pedagogical work. He taught in Tavricheskaya Art School and the Secondary School of Arts (now the Artistic Lyceum named after Boris Ioganson of the Russian Academy of Arts).
Alexei Vasilievich Mozhaev died on January 23 in Saint St. Petersburg.
His paintings reside in State Russian Museum, in Art museums and private collections in Russia, England, China, Japan, in the United States., France, and other countries.
His individual style has development from an academic manner, based on strict objectivism and typing, towards a stronger expression in the transfer of individual characteristics and refinement of color.
Union of the Soviet Socialist Republics Union of Artists.